Turbine.



No. 891,812. PATENTBDJUNE so, 1908. W. J. GARTWRIGHT.

TURBINE.

APPLIOATION FILED MAR. 27, 1907.

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Inventor: 3|

v PATENTED JUNE 30, 1908. w. J. GARTWRIGHT.

TURBINE 3 BHEETS-SHEET 2.

'APPLIGATION FILED MAR. 27, 1907.

In ven tor: fizvg.

PATENTED JUNE so, 1908. w. 'J. CAETWRIGHT.

TURBINE APPLICATION mum MAR. 27, 1907.

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Inventor: G -v Attest:

WILLIAM J. CARTWRIGHT, OF NEW Y ORK, N. Y.,- ASSIGNOR OF OF NEW YORK, N. Y.

TURBINE.

To all whom it may concern:

Be it known that l, WILLIAM J. (Ann WRIGHT, a citizen of the United States, residing in the borough of Manhattan, of the city of New York, in the State of New York, have invented certain new and useful Improvements in Elastic-Fluid T urbines, of which the following is a specification, reference be ing had to the accompanying drawii'igs, forming a part hereof. i

The object of this invention is to improve the means for controlling and regulating the speed of elastic fluid turbines.

The invention is concerned with the means for controlling the admission of'motive fluid through the speed of the turbine and with the means for determining the admission of the motive fluid to condensing or non-condensing nozzles according to the pressure conditions. within the turbine.

The invention will bemore fully described hereinafter with reference to the accompanying drawings in which, for purposes of explanationand illustration of the nature of the invention, there is shown a practical embodiment thereof. together with modified forms of certain parts.

In the drawings Figure 1 is a viewin ver tical central section of a steam turbine which embodies the invention. Fig. 2 is a view in end elevation of the turbine shown in Fig. 1. Fig; 3 is a transverse section on the plane indicated by the line 33 of Fig. 1.

In the embodiment of the invention illustrated in Figs. 1-3 of the drawings the shaft a of the turbine is mounted to rotate in suitable bearings supported by the body b and head bof a generally circular casing which is shown as mounted upon a suitable base 6 The body I) is preferably stopped or successively reduced in diameter from the annular inlet or feed chamber b which is secured to and forms a part ofthe head 72-, to the annular exhaust chamber 11*. To the inside of the casing body Z) are secured the rings c which support the stationary vanes c and c-, which form the stationary buckets or vane spaces, to be more particularly described hereinafter: To the shaft u are secured rotating turbine wheels (Z, (Z.

Through the head l) are formed zles through which tl the nozie steam or other elastic fluid is admitted to the buckets of the first wheel d. These nozzles are condensing nozzles, as indicated at bi" in Fig. l, and non- I. i l 1 Specification of Letters Patent.

Application filed March 27, 1907.

c 1, preferably through tl vidcd with ONE-HALRTO FRANK L. WIN G,

Patented June 30, 1908.

serial no, genera" in Fig.

arranged in alternation, so that re movement of the ports a of the nozzles I) admitted either to ring 6, prowhich overlies and I)", the steam can be the condensing nozzles or to the non-condensing nozzles as the conditions of operati nozzle charger is made auto era'tion, being governs the exhaust.

1s connected. by a rod c to-a turn is connected by a link 6 to a a cylinder f.

the cylinder f her 5 or soni nectiou, and from t SUI'S.

in the valve phragm h which is on require. Preferably the niatic in its opd by the vacuum in As shown in Fig. 3 the ring e lever e which in iston f of Connection is estab from the annularsteam chame other part of the steam con he exhaust chamber 7) or art of the connection wherein a ssure'is created, the connection am pressure or vacuum governed by a valve the is controlled by the de pressure being movement of which gree of vacuum presthe cylinder 7" is conth a valve chamber 9 g and a vacuum pipe The sliding valve plug 9 box g is connected to a dia subject on one side to atmospheric pressure and on the other side,

turbine. So

the. undetermined moved by the the valve plu 6 of the ring nozzles direction to 4 tween the cylinder 7 pressure tl c will be shift tales b and to cause with the non-00nd this means a tions from condens nozzles, 1call rcqulre the cl irough a vacuum pi which exists in the Should the the predetermined valve 9 will be mover irough the pipe 9 e h, to the vacuum ex iaust passages of the as the vacuumis above degree the diaphragm is atmospheric pressure tohold g g in such position that conshed between the cylinder age in which the hat the piston f is drawn a position that the ports a register with the condensing vacuum be less than degree, however, the l by the diaphragm in a establish communication beand the source of steam so that the ring condensing nozthe ports 6 to re ister ensing nozzles 13. By g of the steam connecing or non-condensing long ed to close the shiftin or vice versa, is effected automaty and mstantl y as soon as the conditions range.

the inlets lished to 

